Snap for 4431872 from 435a2031d62e868aae928ec3c4090ea3bbea3397 to oc-m2-releaseandroid-8.1.0_r8android-8.1.0_r52android-8.1.0_r50android-8.1.0_r47android-8.1.0_r46android-8.1.0_r43android-8.1.0_r41android-8.1.0_r36android-8.1.0_r35android-8.1.0_r33android-8.1.0_r30android-8.1.0_r26android-8.1.0_r25android-8.1.0_r20android-8.1.0_r2oreo-m7-releaseoreo-m6-s4-releaseoreo-m6-s3-releaseoreo-m6-s2-releaseoreo-m2-s5-releaseoreo-m2-s4-releaseoreo-m2-s3-releaseoreo-m2-s2-releaseoreo-m2-s1-releaseoreo-m2-release

Change-Id: I4ece9d5cd260040af666980d17cd8f06c04b9921

1 files changed, 5 insertions, 3 deletions

diff --git a/update_verifier/update_verifier.cpp b/update_verifier/update_verifier.cpp
index faebbede..ba7b7aec 100644
--- a/update_verifier/update_verifier.cpp
+++ b/update_verifier/update_verifier.cpp
@@ -137,11 +137,12 @@ static bool read_blocks(const std::string& partition, const std::string& range_s
     LOG(ERROR) << "Error in parsing range string.";
     return false;
   }
+  range_count /= 2;
 
   std::vector<std::future<bool>> threads;
   size_t thread_num = std::thread::hardware_concurrency() ?: 4;
-  thread_num = std::min(thread_num, range_count / 2);
-  size_t group_range_count = range_count / thread_num;
+  thread_num = std::min(thread_num, range_count);
+  size_t group_range_count = (range_count + thread_num - 1) / thread_num;
 
   for (size_t t = 0; t < thread_num; t++) {
     auto thread_func = [t, group_range_count, &dm_block_device, &ranges, &partition]() {
@@ -154,7 +155,8 @@ static bool read_blocks(const std::string& partition, const std::string& range_s
         return false;
       }
 
-      for (size_t i = 1 + group_range_count * t; i < group_range_count * (t + 1) + 1; i += 2) {
+      for (size_t i = group_range_count * 2 * t + 1;
+           i < std::min(group_range_count * 2 * (t + 1) + 1, ranges.size()); i += 2) {
         unsigned int range_start, range_end;
         bool parse_status = android::base::ParseUint(ranges[i], &range_start);
         parse_status = parse_status && android::base::ParseUint(ranges[i + 1], &range_end);